A DOCM file is a document created by Microsoft Word, a popular word processor included with Microsoft Office. It contains embedded macros that can be executed within the document. DOCM files are used to automate Word Open XML document (.DOCX) tasks by adding advanced macro functionality.

DOCM file open in Microsoft Word 2016 Macros are a series of commands grouped together as a single command and executed to automatically complete a task. They are helpful for saving time when performing repetitive functions such as data entry or computation. You can also assign a macro to a specific button in Word or keystroke for saving time. To record a macro, select View → Macros → Record Macro. DOCM files are saved using the open XML-based Word document format, which was introduced in Office 2007. They can be opened by Microsoft Word 2007 or previous versions of Word with Open XML component support.